Clyde sits next to 4 phonetic neighbors — Floyd, Boyd, and Lloyd are the closest matches by sound. Most share Clyde's Scottish cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"from the River Clyde"
"statement of belief, system of faith"
"famous wolf"
"priceless one"
"male duck"
"generous, noble, honorable"
"farm settlement of Dudda"
"dexterous, adept"
"long narrow hill"
"companion, fellow traveler"
"my God is salvation"
"water, thermal waters (place name)"
"ray of light, bright counsel"
"sea fortress, sea friend"
"great, powerful"
"son of Will (William)"
"world-encircling waters"
"supplanter"
"colt keeper, young horse handler"
"rocky land, stony ground"
"fallow land, uncultivated land"
Similar sound: These names share phonetic patterns with Clyde — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Scottish Celtic origins, giving them the same cultural heritage as Clyde.
Rhythm: Clyde is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.